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This and vdB141 were the only targets I captured with the "big scope", the AT111EDT (big in comparison to the WO Star71). It's definitely not as sharp as I would like, but I got many luminance frames and was able to select the best ones to get a reasonably sharp image and still have good dynamic range. Again, not as good as I would like, but probably better than my previous attempts at this target.
William Optics Star71 at f/4.9
QSI583ws with Astronomik LRGB filters